This item is a good condition used Megger TTR310 Three Phase Transformer Turns Ratio (TTR) Test Set. Calibrated to NIST Traceable Standards on April 01, 2025 . Includes carrying bag for test leads, test leads, power cord, ground lead, and NIST traceable calibration certificate. All pictures are of the actual unit and accessories.
This item comes with a 180 day warranty. All functions are guaranteed to work or money will be refunded.
Item is in-stock and located in Texas.
International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. For more information of clarification, please ask.
Will ship worldwide. We make our best efforts to get you the best shipping prices. Contact us for other international rates and we will be pleased to give you a quote. We accept VISA / Mastercard. Paypal is also accepted. Sales to within Canada are subject to 5% GST. Ontario sales subject to 13% HST.
Megger TTR310 Three Phase Transformer Turns Ratio (TTR) Test Set NIST Calibrated
The TTR310 is a rugged, portable, and easy-to-use three-phase transformer turns ratio tester. It is ideal for substations and transformer manufacturing environments, measuring transformer turns ratio, excitation current, phase angle deviation, and ratio error with high accuracy. The unit features a 5.7-inch color display, onboard storage, and supports remote-control testing via PowerDB LITE software.
It’s the most popular model in the TTR300 series, offering stand-alone or PC-controlled operation and optional thermal printer support for in-field printouts.
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Turns Ratio Range: Up to 45,000:1
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Accuracy:
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±0.1% (0.8 to 2000:1)
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±0.35% (up to 8000:1 at 8V)
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±0.30% (up to 45,000:1 at 80V)
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Excitation Voltage: 8, 40, or 80 V rms (auto or manual)
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Excitation Current Accuracy: ±2% of reading + 1 digit
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Phase Deviation Accuracy: ±0.05° (±3 minutes)
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Display: 5.7” color transflective VGA display, readable in sunlight
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Memory: Stores up to 200 data sets
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Interfaces:
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RS-232 and USB for PC communication and data export
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Optional RS-232 printer support
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Software: PowerDB LITE (included); full PowerDB optional
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Weight:
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Instrument only: 25 lb (11.3 kg)
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With leads & case: 84 lb (38.1 kg)
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